Custom PETG Heatbed End G-code
 
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Custom PETG Heatbed End G-code  

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Matticus Finch
(@matticus-finch)
Active Member
Custom PETG Heatbed End G-code

Hello!

I've noticed when printing PETG parts on my powder-coated PEI bed, if I let the buildplate cool to room temp and then heat it back up to around 60˚C, the parts release much more cleanly when I flex the plate. I don't want to keep doing this manually, so I printed out two spiralized cylinders with these two different G-codes in [Filament Settings -> Custom G-code -> End G-code]:

M190 S35

M140 S60

M190 S60

and

M140 S35

M190 S35

M140 S60

M190 S60

I thought this sequence would have the bed to cool down to 35˚C, bring it back up to 60˚C, and then finish, but both prints finished printing like nothing had changed in the g-code.

What I wanted was g-code I could add to my PETG profile's [Custom G-code -> End G-code] that, once the print is done:

  1. Had the bed to cool down to 35˚C
  2. Brought the bed temp up to 60˚C
  3. Beeped/chirped when it reached 60˚C
  4. And then continued with the cooling down of the bed.

I was hoping I could make it so the printer end g-code would go like this:

G4 ; wait
M104 S0 ; turn off temperature
M107 ; turn off fan
{if max_layer_z < max_print_height}G1 Z{z_offset+min(max_layer_z+30, max_print_height)}{endif} ; Move print head up
G1 X0 Y200 F3000 ; home X axis
M900 K0 ; reset LA
M84 ; disable motors
[Filament End G-code]
M140 S0 ; turn off heatbed

I don't know where to go from here and any thoughts would be greatly appreciated!

Best,

Matthew

 

Veröffentlicht : 17/03/2021 5:35 am
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